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The Boundary System by Katy Goodwin, MA, book cover

The Boundary System

$29$49

A practical, step-by-step guide for parents of children ages 3–9

By Katy Goodwin, MA in child development. 350K+ parents follow me on Instagram.

GET THE BOOK, $29

$29 USD, once. PDF and EPUB by email, usually within a few minutes. 30-day money-back guarantee.

2,300+ parents have built healthy boundaries in their families with this book.

What parents wrote me

Katy, I had to DM you. I was so burned out from screen time, every shutdown was a full tantrum and I'd give in just to survive. The Boundary System made it click why it kept happening. I didn't get harsher, I got clearer and consistent. Within like 2 weeks the meltdowns dropped and screens stopped running our house. Thank you.
A parent, by Instagram message
Just wanted to message you and say thank you. We're still very much in progress, but evenings already feel calmer. Not perfect, not quiet, just less exhausting. I didn't realize how tired I was from all the negotiating until it stopped.
A parent, by Instagram message
Really appreciate you writing this. I was so worried that setting boundaries would mess with my child's emotions. Your point about how kids feel unsafe with unclear limits really resonated with me. I've already stopped negotiating during bedtime, and while it's not perfect, the crying is shorter, and I feel a whole lot more sure of myself.
A parent, by Instagram message
Your book came when I was honestly at a breaking point. I felt like no matter how loving or calm I tried to be, my son kept pushing more and more. Now I finally understand why that was happening. Even after a few weeks of being clearer and more consistent, he's already less explosive and more cooperative.
A parent, by Instagram message
Just wanted to say thanks. We were constantly at odds over screens. I followed your steps for being consistent, and after just a few days, my daughter stopped pushing back so much. I didn't change her, I changed how I enforced the limit.
A parent, by Instagram message
Hi Katy, I just wanted to say thank you for your book. We only started applying it recently and nothing is magically fixed, but I already feel different inside. I'm not constantly questioning myself or explaining everything 10 times. My kid still pushes, but it feels less intense. Honestly wish I'd found this sooner.
A parent, by Instagram message

A Practical Parenting Guide for Parents of Children Ages 3 to 9

YOU'RE A GOOD PARENT. YOU'RE MISSING A SYSTEM.

It's bedtime again. You said no to one more show. Now you're explaining, then negotiating, trying to stay the calm parent you promised you'd be. And somewhere inside you already know how this ends. You'll give in a little and feel the slip. Tomorrow, you tell yourself, you'll hold the line.

You are loving and patient. You show up. And you're still exhausted and unsure, braced for the next meltdown.

The gap between how hard you try and how little holds is a missing system.

CALM PARENTING BREAKS QUIETLY

It fails a little at a time, in the small moments no one sees. The "just this once" at the checkout. The limit you quietly drop to protect the closeness you are scared of losing.

Nothing explodes. But your child is adapting to the structure that actually exists. When it's unclear, they push harder.

WHY IT FEELS LIKE YOU'RE LOSING AUTHORITY

Your child is not difficult. And you are not too soft. Gentle parenting still works.

Calm without structure feels like uncertainty. To a child, uncertainty feels like danger. So when the limits keep moving, they test more. Tantrums get louder too.

Real parenting happens in the hot moments, when you're tired and have two seconds to decide. In those moments, everything you read disappears. Only your structure remains.

CHILDREN CHANGE FROM WHAT REPEATS

If your boundaries shift with your mood or your guilt, your child keeps pushing. They are looking for the one edge that finally holds still, because that edge is where they feel safe.

THE BOUNDARY SYSTEM EXISTS FOR THIS EXACT GAP

You won't have to get stricter. Your gentleness stays. The book gives you one clear, repeatable system that:

holds steady when you are worn down

ends the constant moment-to-moment negotiating

puts the calm adult back in charge

and gives your child the safety they have been testing for

WHY YOU CAN TRUST THIS

I have lived inside that loop. I did everything "right" and watched "no" turn into a negotiation, my confidence draining one hard moment at a time. I climbed out by getting clearer.

I'm Katy Goodwin, a parenting educator with an MA in Child Development. I turned what holds up in child development research into a simple structure for real life. It got me out of the loop. Now it's what I teach.

BUILT ON SCIENCE. TESTED IN REAL LIFE.

The book builds on attachment and nervous system research, from Bowlby and Ainsworth to Siegel and Schore. I also used it in my own home, in the exact moments where gentle-parenting advice fell apart.

WHO THIS IS FOR

It's for parents who want more than scripts and quick fixes.

Parents who are tired of almost. Almost consistent. Almost holding the line long enough to see it change.

And who are ready for a system that doesn't depend on willpower or mood.

Your child is 10 or older? The Teen Boundary System is written for ages 10 to 17.

What’s Inside The Boundary System

You don't read it cover to cover. Start with Chapter 6, the rest is there when you need it.

A look inside

The contents page of The Boundary System, listing all 13 chapters
A page from Chapter 6 on why giving in sometimes makes tantrums longer
A page from Chapter 6 with short phrases to use in the moment, such as I hear you. The rule stays.

Chapter 1. Why Children Need Boundaries
Why a child whose limits keep moving pushes harder, with a checklist of the limits your family already has.

Chapter 2. When to Start: Age Guidelines for Boundaries
Which rules fit your child’s age right now, and how to bring in a new one without hurting your relationship.

Chapter 3. Personal Boundaries for Every Human Being
Your child’s right to say no to a hug, and your own right to say no.

See all 13 chapters

Chapter 4. The Inner Circle and the Outer Circle
Who your child can trust and how to talk about strangers, in words a four-year-old understands.

Chapter 5. Tantrums, Demands, and Protests
What happens in your child’s body during a tantrum, and my 2-minute tantrum algorithm.

Chapter 6. No Means No: The Power of Consistency
Why giving in “just this once” makes tantrums longer, and my five steps to a no that holds.

Chapter 7. Responsibilities and a Child’s Part in Family Life
Chores that match your child’s age, and five rules that take the fight out of asking for help.

Chapter 8. Consequences: A Gentle and Effective Parenting Tool
The answer to the question parents ask me most: what do I do after I’ve asked once?

Chapter 9. Parental Irritation and Self-Regulation
What to do in the 30 seconds before you yell.

Chapter 10. Trusting Your Child and Staying the Course
A day-by-day plan for your first week with a new boundary, and what to do when progress feels slow.

Chapter 11. Parental Guilt: How to Stop Destroying Yourself
How to stop the “I yelled again, I’m a terrible mother” spiral.

Chapter 12. Connection and Bond: The Golden Rules of Communication
Keeping your child close while the rules change, with small daily rituals.

Chapter 13. Starting From Zero: A Gentle Roadmap by Age
If there have never been real limits in your home, a month-by-month plan for your child’s age.

WHAT YOU WALK AWAY WITH

  • a complete, practical boundary system

  • tools you can use the same day you read them

  • boundaries that hold, even on the hard days

  • and your authority back, without losing the closeness

WHAT HAPPENS TONIGHT

Pick the one rule that causes the most fights at your house. Say it once, calmly, at a quiet moment. Chapter 6 gives you the words. The first seven days are laid out day by day in Chapter 10.

Hold that rule the same way for two to four weeks. Your child may push harder at first. After that, most evenings get calmer.

What if it doesn't help? There's a 30-day money-back guarantee. If the book doesn't work for you, email me at support@katygoodwins.com and you get a full refund.

$29 USD, once.

What parents say

Names are hidden for privacy.

I picked up the book a couple of days back and I've already gone through about half of it. Honestly, I'm enjoying it so far. It's straightforward and gets to the point without any unnecessary filler. In a few days, I'm thinking of starting to implement the rules bit by bit. Fingers crossed it goes well!
My kid isn’t really a handful, but there were definitely a few things we didn’t address. The book is super practical and it really does what it promises. I'm on board with it.
I really enjoyed the book! It’s great that, like another review pointed out, there's no unnecessary fluff, which I truly valued. I was eager to start using the method right away since I’m not a fan of theory that doesn’t offer practical tips. My husband and I have already begun implementing what we've learned from it. I definitely recommend it!
It really felt down-to-earth and relatable. There was no stress about being the perfect parent, just straightforward guidance and practical examples. Even little tweaks made things a lot more peaceful for us.

Get Calm, Clear Boundaries

Total$29 USD, once
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30-day money-back guarantee. If the book doesn't help, email me for a full refund.

2,300+ parents have built healthy boundaries in their families with this book.